20006266404 has 12 divisors (see below), whose sum is σ = 46681288304. Its totient is φ = 6668755464.

The previous prime is 20006266309. The next prime is 20006266409. The reversal of 20006266404 is 40466260002.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20006266409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833594422 + ... + 833594445.

Almost surely, 2^20006266404 is an apocalyptic number.

It is an amenable number.

20006266404 is an abundant number, since it is smaller than the sum of its proper divisors (26675021900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20006266404 is a wasteful number, since it uses less digits than its factorization.

20006266404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667188874 (or 1667188872 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 20006266404 in words is "twenty billion, six million, two hundred sixty-six thousand, four hundred four".